EP4274269A1 - Procédé de communication sans fil et dispositif - Google Patents

Procédé de communication sans fil et dispositif Download PDF

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Publication number
EP4274269A1
EP4274269A1 EP21935671.4A EP21935671A EP4274269A1 EP 4274269 A1 EP4274269 A1 EP 4274269A1 EP 21935671 A EP21935671 A EP 21935671A EP 4274269 A1 EP4274269 A1 EP 4274269A1
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EP
European Patent Office
Prior art keywords
ebcs
request
response
authentication
authentication information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21935671.4A
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German (de)
English (en)
Other versions
EP4274269A4 (fr
Inventor
Xinyi RAN
Yingying Tian
Honghao JU
Pei Zhou
Lei Huang
Liuming LU
Chaoming LUO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202110385389.6A external-priority patent/CN115209352A/zh
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Publication of EP4274269A1 publication Critical patent/EP4274269A1/fr
Publication of EP4274269A4 publication Critical patent/EP4274269A4/fr
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H04W12/069—Authentication using certificates or pre-shared keys
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • Embodiments of the present disclosure relate to the field of communication, and in particular to a wireless communication method and devices.
  • a Station can rapidly discover (i.e. rapidly obtain) an Enhanced Broadcast Service (eBCS) through an Access Network Query Protocol (ANQP) request and an ANQP response, or through an eBCS request and an eBCS response.
  • eBCS Enhanced Broadcast Service
  • ANQP Access Network Query Protocol
  • eBCS response there is no authentication information of the eBCS in the enhanced broadcast response ANQP-element structure in the ANQP response.
  • the STA cannot obtain the authentication information of the eBCS through the ANQP request and the ANQP response, or through the eBCS request and the eBCS response, but has to receive eBCS info frame before obtaining the authentication information of the eBCS.
  • transmission period of the eBCS info frame is large, and transmission interval is Target Beacon Transmission Time (TBTTs).
  • TBTTs Target Beacon Transmission Time
  • PKFA Public Key Frame Authentication
  • MPDU PKFA MAC Protocol Data Unit
  • HCFA Hash Chain Frame Authentication
  • HCFA MPDU Hash Chain Frame Authentication
  • the STA would discard the received HCFA MPDU due to the large delay in the process of waiting for the eBCS info frame, which results in data waste.
  • the problems of the large data authentication delay in the eBCS acquisition process and data loss caused by the eBCS authentication delay in the related art are the problems of the large data authentication delay in the eBCS acquisition process and data loss caused by the eBCS authentication delay in the related art.
  • Embodiments of the present disclosure provide a wireless communication method and devices, thereby reducing the data authentication delay in the eBCS acquisition process and solving the problem of data loss caused by the eBCS authentication delay.
  • a wireless communication method includes the following operations.
  • a Station (STA) sends a first request to an Access Point (AP).
  • the first request is configured to request an Enhanced Broadcast Service (eBCS).
  • eBCS Enhanced Broadcast Service
  • the STA receives a first response.
  • the first response includes authentication information of the eBCS.
  • a wireless communication method includes the following operations.
  • a sending end sends an Access Network Query Protocol (ANQP) request to a receiving end.
  • the ANQP request includes a requested time to termination, and the requested time to termination is a time when the sending end requests for terminating an eBCS.
  • ANQP Access Network Query Protocol
  • a wireless communication method includes the following operations.
  • An AP receives a first request.
  • the first request is configured to request an eBCS.
  • the AP sends a first response to a STA.
  • the first response includes authentication information of the eBCS.
  • a wireless communication method includes the following operations.
  • a receiving end receives an ANQP request from a sending end.
  • the ANQP request includes a requested time to termination, and the requested time to termination is a time when the sending end requests for terminating an eBCS.
  • a wireless communication method includes the following operations.
  • a STA sends a request frame carrying an eBCS request element to an AP.
  • the STA receives a response frame carrying an eBCS response element.
  • the eBCS request element is a unified request element for an eBCS that needs registration and does not need association and an eBCS that needs association
  • the eBCS response element is a unified response element for the eBCS that needs registration and does not need association and the eBCS that needs association.
  • a wireless communication method includes the following operations.
  • An AP receives a request frame carrying an eBCS request element sent by a STA.
  • the AP sends a response frame carrying an eBCS response element to the STA.
  • the eBCS request element is a unified request element for an eBCS that needs registration and does not need association and an eBCS that needs association
  • the eBCS response element is a unified response element for the eBCS that needs registration and does not need association and the eBCS that needs association.
  • a STA is provided.
  • the STA is configured to perform the method in the above first aspect or various implementations thereof.
  • the STA includes function modules for performing the method in the above first aspect or various implementations thereof.
  • a sending end is provided.
  • the sending end is configured to perform the method in the above second aspect or various implementations thereof.
  • the sending end includes function modules for performing the method in the above second aspect or various implementations thereof.
  • an AP is provided.
  • the AP is configured to perform the method in the above third aspect or various implementations thereof.
  • the AP includes function modules for performing the method in the above third aspect or various implementations thereof.
  • a receiving end is provided.
  • the receiving end is configured to performing the method in the above fourth aspect or various implementations thereof.
  • the receiving end includes function modules for performing the method in the above fourth aspect or various implementations thereof.
  • a STA is provided.
  • the STA is configured to perform the method in the above fifth aspect or various implementations thereof.
  • the STA includes function modules for performing the method in the above fifth aspect or various implementations thereof.
  • an AP is provided.
  • the AP is configured to perform the method in the above sixth aspect or various implementations thereof.
  • the AP includes function modules for performing the method in the above sixth aspect or various implementations thereof.
  • a communication device in a thirteenth aspect, includes a processor and a memory.
  • the memory is configured to store a computer program
  • the processor is configured to invoke and run the computer program stored in the memory to perform the method in any of the above first to sixth aspects or various implementations thereof.
  • an apparatus configured to implement the method in any of the above first to sixth aspects or various implementations thereof.
  • the apparatus includes a processor.
  • the processor is configured to invoke and run a computer program from a memory to cause a device on which the apparatus is mounted to perform the method in any of the above first to sixth aspects or various implementations thereof.
  • a computer-readable storage medium configured to store a computer program that causes a computer to perform the method in any of the above first to sixth aspects or implementations thereof.
  • a computer program product comprising computer program instructions that cause a computer to perform the method in any of the first to sixth aspects or various implementations thereof.
  • a computer program is provided.
  • a computer performs the method in any of the above first to sixth aspects or various implementations thereof.
  • the enhanced broadcast response ANQP-element structure is modified, or the enhanced broadcast request ANQP-element structure and the enhanced broadcast response ANQP-element structure are modified, or the eBCS response element structure is modified, or the eBCS request element structure and the eBCS response element structure are modified, thereby reducing the data authentication delay in the eBCS acquisition process and mitigating the problem of data loss caused by the eBCS authentication delay.
  • the enhanced broadcast request ANQP-element structure is modified so as to support the termination notice process for an eBCS that only needs registration.
  • a unified eBCS request element and a unified eBCS response element are provided to perform the request and acquisition of the eBCS.
  • the unified eBCS request element is valid for both the associated eBCS and the non-associated eBCS
  • the unified eBCS response element is also valid for both the associated eBCS and the non-associated eBCS.
  • IEEE 802.11bc provides an Enhanced Broadcast Service DownLink (eBCS DL), so as to enable an Access Point (AP) to broadcast data to a Station (STA).
  • eBCS DL Enhanced Broadcast Service DownLink
  • the AP in the present disclosure may also be referred to as an eBCS AP, and the STA may also be referred to as an eBCS non-AP STA, which are not limited in the present disclosure.
  • the AP In an eBCS DL process, the AP periodically broadcasts the eBCS info frame to realize the discovery of the eBCS DL service and provide authentication information of the eBCS (that is, the eBCS data).
  • the present solution mainly improves a rapid acquisition service of the eBCS in the eBCS DL process, and perfects a negotiation process of a termination notice process.
  • FIG. 1 provides a diagram of the eBCS DL process. As illustrated in FIG. 1 , the specific processes are illustrated as follows.
  • eBCS data frame in the present disclosure may also be referred to as the eBCS or the eBCS data, which would not be limited in the present disclosure.
  • the eBCS DL process also supports that the STA sends an ANQP request or an eBCS request to actively request one or more eBCSs, so as to achieve a rapid discovery of the eBCS.
  • the STA achieves the rapid discovery of the eBCS through an ANQP request frame and an ANQP response frame, so as to obtain the sending time of the eBCS.
  • FIG. 2 is a diagram of an enhanced broadcast response ANQP-element structure in an ANQP response
  • FIG. 3 is a diagram of an eBCS response element structure in an eBCS response. As illustrated in FIG. 2 and FIG.3 , neither the enhanced broadcast response ANQP-element structure nor the eBCS response element structure contains authentication information of the eBCS data.
  • the STA After obtaining the eBCS data frame, the STA has to receive eBCS info frame before obtaining the authentication information of the eBCS data frame.
  • FIG. 4 is a diagram of an eBCS info frame structure.
  • the eBCS info frame contains important information about the eBCS, which mainly includes time dimension information and authentication dimension information.
  • the time dimension information includes the eBCS info interval and a next time for the transmission of the data frame (next schedule) corresponding to the eBCS identified by each content Identity (ID).
  • the authentication dimension information includes the authentication certificate, the HCFA base key, the HCFA key change interval information and the like.
  • FIG. 5 is a timing diagram of a rapid discovery of an eBCS adopting the PKFA authentication method.
  • the STA joins existing communication network at the time point illustrated in FIG. 5 .
  • Transmission period of the eBCS info frame is large, and the transmission interval is TBTTs.
  • the STA cannot obtain the information about the PKFA authentication in the eBCS info frame.
  • the STA achieves the rapid discovery of the eBCS through the ANQP request/ANQP response frame, so as to obtain the sending time of the PKFA MPDU.
  • the STA achieves the rapid discovery of the eBCS through the eBCS request frame and the eBCS response frame after completing the association, so as to obtain the sending time of the PKFA MPDU.
  • the specific processes are as follows.
  • FIG. 6 is a timing diagram of a rapid discovery of a service adopting the HCFA authentication method.
  • the transmission period of eBCS info frame is large, and the transmission interval is the TBTTs.
  • the STA at this time misses the first eBCS info frame, the STA cannot obtain the information about the HCFA authentication in the eBCS info frame.
  • the STA achieves the rapid discovery of the eBCS through the ANQP request frame and the ANQP response frame, so as to obtain the sending time of the HCFA MPDU.
  • the STA achieves the rapid discovery of the eBCS through the eBCS request frame and the eBCS response frame after completing the association, so as to obtain the sending time of the HCFA MPDU.
  • the specific processes are as follows.
  • the sending end is a device for broadcasting data.
  • the sending end may be an STA, and correspondingly, the receiving end may be an AP.
  • the sending end may be an AP, and correspondingly, the receiving end may be an STA, which would not be limited in the present disclosure.
  • FIG. 7 is a flow chart of the negotiation of the termination notice process, and the specific operations are illustrated in FIG. 7 .
  • the sending end determines to terminate the eBCS.
  • the termination of the eBCS includes a case that a Media Access Control (MAC) broadcast is terminated and an application layer still generates a data source.
  • MAC Media Access Control
  • the sending end In an operation S1302, the sending end generates a termination notice frame.
  • the ending end sends the termination notice frame to the receiving end.
  • the receiving end obtains the time to termination of eBCS, the service destination address and the service extension request method corresponding to the content ID from the termination notice frame.
  • the receiving end In an operation S1306, if the expected time to termination of the eBCS indicated in the eBCS termination notice frame is earlier than the actual expected time to termination of the receiving end, the receiving end generates the eBCS request frame.
  • the receiving end sends the eBCS request frame to the sending end.
  • the eBCS request frame includes a content ID corresponding to the eBCS and a requested time to termination.
  • the eBCS request frame includes an eBCS request information set, and the eBCS request information set includes the requested time to termination.
  • the sending end after receiving the eBCS request frame, the sending end obtains the requested time to termination by parsing the eBCS request frame, so as to obtain the latest requested time to termination of the eBCS.
  • the sending end In an operation S1309, the sending end generates an eBCS response frame.
  • the sending end sends the eBCS response frame to the receiving end.
  • the EBCS response frame includes a content ID corresponding to the eBCS, a time to termination, a service process (SP) duration and an SP interval.
  • the eBCS response frame includes an eBCS response information set, and the eBCS response information set includes the time to termination.
  • the receiving end after receiving the eBCS response frame, the receiving end obtains the time to termination by parsing the eBCS response frame, so as to obtain the negotiated time to termination of the eBCS.
  • the present disclosure mainly solves the following two technical problems.
  • the enhanced broadcast response ANQP-element structure is modified, or the enhanced broadcast request ANQP-element structure and the enhanced broadcast response ANQP-element structure are modified, or the eBCS response element structure is modified, or the eBCS request element structure and the eBCS response element structure are modified.
  • the present disclosure mainly adopts the following method to solve the technical problem.
  • the enhanced broadcast request ANQP-element structure is modified.
  • FIG. 14 is an interaction flow chart of a wireless communication method provided by an embodiment of the present disclosure. As illustrated in FIG. 14 , the method includes the following operations.
  • a STA sends a first request to an AP, and the first request is configured to request an eBCS.
  • the AP sends a first response to the STA, and the first response includes authentication information of the eBCS.
  • the eBCS is an eBCS which needs registration and does not need association, and correspondingly, the first request is an ANQP request, and the first response is an ANQP response.
  • the eBCS is an eBCS which needs association, and correspondingly, the first request is an eBCS request, and the first response is an eBCS response.
  • the ANQP request in the optional method 1 is described exemplarily.
  • FIG. 15 is a diagram of an enhanced broadcast request ANQP-element structure provided by an embodiment of the present disclosure.
  • an enhanced broadcast services request control field is added to enhanced broadcast services request tuples in the enhanced broadcast service request ANQP-element structure, and request authentication information is added in the enhanced broadcast services request control field.
  • the request authentication information is configured to indicate whether to request for acquiring authentication information of the eBCS.
  • a value of the request authentication information is 1, which indicates that the STA requests a rapid acquisition of the eBCS and the STA requests the authentication information of the eBCS.
  • the value of the request authentication information is 0, which indicates that the STA does not request the authentication information of the eBCS.
  • the enhanced broadcast services request control field may include a requested time to termination present, which is configured for a termination notice process of the STA.
  • the enhanced broadcast services request tuples may include a requested time to termination.
  • the enhanced broadcast services request control field may include a request target AP information present, and the request target AP information present is configured for a cross-AP request process of the STA, which would not be described in detail in the present solution.
  • the enhanced broadcast services request tuples may include a basic service set identifier (BSSID) of a target AP.
  • BSSID basic service set identifier
  • FIG. 16 is a diagram of another enhanced broadcast request ANQP-element structure provided by an embodiment of the present disclosure.
  • the enhanced broadcast services request control field is not added to the enhanced broadcast request ANQP-element structure. Instead, the request authentication information is added to a reserved field of the broadcast action field.
  • no field is added in the enhanced broadcast request ANQP-element structure, as illustrated in FIG. 11 .
  • the ANQP response from the AP carries the authentication information of eBCS.
  • FIG. 17 is a diagram of yet another enhanced broadcast request ANQP-element structure provided by an embodiment of the present disclosure.
  • the enhanced broadcast services request tuples in the enhanced broadcast request ANQP-element structure include the request authentication information.
  • first example to fourth example are only several examples for modifying the enhanced broadcast request ANQP-element structure, but are not limited thereto. Lengths of various fields in the enhanced broadcast request ANQP-element structure are not limited to the field lengths illustrated in FIG. 15 to FIG. 17 and FIG. 11 .
  • the ANQP response in the optional method 1 is described exemplarily.
  • FIG. 18 is a diagram of an enhanced broadcast response ANQP-element structure provided by an embodiment of the present disclosure.
  • the enhanced broadcast services response control field is added in the enhanced broadcast services response tuples of the enhanced broadcast response ANQP-element structure, and a response authentication information present is added in the enhanced broadcast services response control field.
  • a value of the response authentication information is 1, which indicates that the rapid acquisition of the eBCS is successfully requested by the STA and the authentication information of the eBCS is added in the enhanced broadcast services response tuples.
  • the value of the response authentication information is 0, which indicates that the STA cannot obtain the authentication information of the eBCS, that is, the authentication information of the eBCS is not added in the enhanced broadcast response ANQP-element structure.
  • the authentication information of the eBCS includes an authentication algorithm field, and the authentication algorithm field is configured to indicate an authentication algorithm for the eBCS.
  • the authentication algorithm is, but is not limited to, one of no frame authentication with mandatory Higher Layer Source Authentication (HLSA), PKFA, HCFA without instant authentication, or HCFA with the instant authentication.
  • HLSA Higher Layer Source Authentication
  • the authentication algorithm for the eBCS is illustrated in Table 1.
  • Table 1 Authentication algorithm for the eBCS Value Authentication algorithm 0 HLSA 1 PKFA 2 HCFA without the instant authentication 3 HCFA with the instant authentication 4-255 Reserved value
  • a corresponding value of authentication algorithm is 0, which indicates that a requested eBCS authentication method is the HLSA and there is no related authentication information field.
  • the corresponding value of the authentication algorithm is 1, which indicates that the requested eBCS authentication method is the PKFA, and the authentication information further includes an allowable time difference, a certificate length and a certificate.
  • the corresponding value of the authentication algorithm is 2, which indicates that the requested eBCS authentication method is the HCFA without the instant authentication, and the authentication information further includes the allowable time difference, an eBCS info interval, an HCFA key change interval and an HCFA base key.
  • the corresponding value of the authentication algorithm is 3, which indicates that the requested eBCS authentication method is the HCFA with the instant authentication, and the authentication information further includes the allowable time difference, a number of instant authenticators and an instant authenticator list.
  • the instant authenticator list includes an instant authenticator Hash distance and an instant authenticator field.
  • the enhanced broadcast response ANQP-element structure may further include at least one of a response target AP information present or a response target AP info, which are configured for a cross-AP response process of the STA and would not be described in detail in the present solution.
  • FIG. 19 is a diagram of another enhanced broadcast response ANQP-element structure provided by an embodiment of the present disclosure.
  • the enhanced broadcast services response control field is not added in the enhanced broadcast services response tuples of the enhanced broadcast response ANQP-element structure.
  • the authentication information of the eBCS is directly added in the enhanced broadcast services response tuples.
  • first example and second example are only several examples for modifying the enhanced broadcast response ANQP-element structure, but are not limited thereto. Lengths of various fields in the enhanced broadcast response ANQP-element structure are not limited to the field lengths illustrated in FIG. 18 and FIG. 19 .
  • the eBCS request in the optional method 2 is described exemplarily.
  • FIG. 20 is a diagram of an eBCS request element structure provided by an embodiment of the present disclosure.
  • an eBCS request information set in the eBCS request element structure contains an eBCS request info control field, and the request authentication information is added in the eBCS request info control field.
  • the request authentication information is configured to indicate whether to request for acquiring the authentication information of the eBCS.
  • the value of the request authentication information is 1, which indicates that the STA requests the rapid acquisition of the eBCS and the STA requests the authentication information of the eBCS.
  • the value of the request authentication information is 0, which indicates that the STA does not request the authentication information of the eBCS.
  • no field is added in the eBCS request element structure, as illustrated in FIG. 9 .
  • the eBCS response from the AP carries the authentication information of eBCS.
  • first example and second example are only several examples of modifying the eBCS request element structure, but are not limited to thereto. Lengths of various fields in the eBCS request element structure are not limited to the field lengths illustrated in FIG. 20 and FIG. 9 .
  • the eBCS response in the optional method 2 is described exemplarily.
  • FIG. 21 is a diagram of an eBCS response element structure provided by an embodiment of the present disclosure.
  • the eBCS response element structure includes an eBCS response information set, and the eBCS response information set includes an eBCS response info control field.
  • a response authentication information present is added in the eBCS response info control field.
  • the value of the added response authentication information present is 1, which indicates that the rapid acquisition of the eBCS is successfully requested by the STA and the authentication information of the eBCS is added in the eBCS response information set.
  • the value of the added response authentication information present is 0, which indicates that the rapid acquisition of the eBCS is not successfully requested by the STA, and the authentication information of the eBCS is not added in the eBCS response element structure.
  • FIG. 22 is a diagram of another eBCS response element structure provided by an embodiment of the present disclosure. As illustrated in FIG. 22 , the response authentication information present is not added in the eBCS response info control field in the eBCS response element structure. By default, the eBCS response element structure from the AP directly carries the authentication information of eBCS.
  • first example and second example are only several examples of modifying the eBCS response element structure, but are not limited to thereto. Lengths of various fields in the eBCS response element structure are not limited to the field lengths illustrated in FIG. 21 and FIG. 22 .
  • the enhanced broadcast response ANQP-element structure is modified, or the enhanced broadcast request ANQP-element structure and the enhanced broadcast response ANQP-element structure are modified, or the eBCS response element structure is modified, or the eBCS request element structure and the eBCS response element structure are modified, thereby reducing the data authentication delay in the eBCS acquisition process and mitigating the problem of data loss caused by the eBCS authentication delay.
  • the eBCS DL supports both associated and non-associated eBCS. It is considered that the STA rapidly discovers the eBCS through the ANQP request and the ANQP response, or through the eBCS request and the eBCS response.
  • the authentication information of the eBCS is added in the ANQP response or the eBCS response, so as to realize the rapid acquisition of the eBCS for the PKFA authentication.
  • FIG. 23 is a timing diagram of the rapid acquisition of the eBCS in the PKFA method provided by an embodiment of the present disclosure, and the specific processes are as follows.
  • FIG. 23 the timing diagram of the rapid acquisition of the eBCS for the PKFA authentication is illustrated in FIG. 23 .
  • the adoption of the rapid acquisition method of the service provided by the present disclosure can save the time for the STA to obtain the eBCS on one hand, and can improve the utilization rate of the PKFA MPDU on the other hand.
  • FIG. 24 is a timing diagram of the rapid acquisition of the eBCS in the HCFA method provided by an embodiment of the present disclosure, and the specific processes are as follows.
  • FIG. 24 the timing diagram of the rapid acquisition of the eBCS in the HCFA authentication is illustrated in FIG. 24 .
  • the adoption of the rapid acquisition method of the service provided by the present disclosure can save the time for the STA to obtain the eBCS on one hand, and can improve the utilization rate of the HCFA MPDU on the other hand.
  • FIG. 25 is an interaction flow chart of another wireless communication method provided by an embodiment of the present disclosure. As illustrated in FIG. 25 , the method includes the following operations.
  • a sending end sends an ANQP request to a receiving end.
  • the ANQP request includes a requested time to termination, and the requested time to termination is a time when the sending end requests for terminating an eBCS.
  • the eBCS is an eBCS which needs registration and does not need association
  • the ANQP request is configured to request an extension of the eBCS.
  • the sending end may be an AP and the receiving end may be an STA.
  • the sending end may be an STA and the receiving end may be an AP.
  • the ANQP request is described exemplarily.
  • FIG. 26 is a diagram of an enhanced broadcast request ANQP-element structure provided by the embodiment of the present disclosure.
  • an enhanced broadcast services request control field and a requested time to termination are added in the enhanced broadcast services request tuples of the enhanced broadcast request ANQP-element structure so that the receiving end can negotiate a time to termination of the eBCS with the sending end.
  • a requested time to termination present is added in the enhanced broadcast services request control field.
  • a value of the requested time to termination present is 1, which indicates that the requested time to termination exists.
  • the value of the requested time to termination present is 0, which indicates that the requested time to termination does not exist.
  • a remaining part of the enhanced broadcast services request control field is a reserved field.
  • the enhanced broadcast services request control field further includes request authentication information, and the request authentication information is configured for the rapid acquisition of eBCS to the STA.
  • the enhanced broadcast services request control field further includes a request target AP information present, and the request target AP information present is configured for a cross-AP request process of the STA, which would not be described in detail in the present solution.
  • the enhanced broadcast services request tuples may include a BSSID of a target AP.
  • FIG. 27 is a diagram of another enhanced broadcast request ANQP-element structure provided by an embodiment of the present disclosure.
  • the enhanced broadcast services request control field and the requested time to termination present are not additionally added in the enhanced broadcast request ANQP-element structure.
  • the requested time to termination is carried in the enhanced broadcast request ANQP-element structure.
  • FIG. 28 is a diagram of yet another enhanced broadcast request ANQP-element structure provided by an embodiment of the present disclosure.
  • the enhanced broadcast services request control field is not additionally added in the enhanced broadcast request ANQP-element structure.
  • the requested time to termination present is added by using other reserved fields in the enhanced broadcast request ANQP-element structure, such as a reserved field in a broadcast action field.
  • first example to third example are only several examples for modifying the enhanced broadcast request ANQP-element structure, but are not limited thereto. Lengths of various fields in the enhanced broadcast request ANQP-element structure are not limited to the field lengths illustrated in FIG. 26 and FIG. 28 .
  • the enhanced broadcast request ANQP-element structure is modified so as to support a termination notice process for an eBCS that only needs registration.
  • the negotiation of the termination notice process for the eBCS that only needs registration is implemented. Specifically, the specific timing diagram of the negotiation is illustrated in FIG. 29 .
  • the sending end determines to terminate the eBCS.
  • the termination of the eBCS includes a case that a MAC broadcast is terminated but an application layer still generates a data source.
  • the sending end In an operation S2902, the sending end generates a termination notice frame.
  • the sending end sends the termination notice frame to the receiving end.
  • the receiving end obtains the time to termination of eBCS, the service destination address and the service extension request method corresponding to the content ID from the termination notice frame.
  • GAS Generic Advertising Service
  • the GAS initial request frame carries a query request field.
  • the query request field includes an ANQP request.
  • the ANQP request includes an enhanced broadcast request ANQP-element structure.
  • the element structure includes a content ID, a broadcast action field and a requested time to termination.
  • the receiving end sends the GAS initial request frame to the sending end.
  • the sending end after receiving the GAS initial request frame, the sending end generates a GAS initial response frame.
  • the GAS initial response frame carries a query response field.
  • the query response field includes an ANQP response.
  • the ANQP response includes an enhanced broadcast services ANQP-element structure.
  • the element structure may include a content ID, a time to termination, a request method, a service destination address, etc.
  • the sending end sends the GAS initial response frame to the receiving end.
  • the receiving end after receiving the GAS initial response frame, the receiving end obtains the time to termination by parsing the GAS initial response frame, so as to obtain the negotiated time to termination of the eBCS.
  • FIG. 30 illustrates a block diagram of a STA 3000 according to an embodiment of the present disclosure.
  • the STA 3000 includes a communication unit 3010.
  • the communication unit 3010 is configured to send a first request to an AP and receive a first response.
  • the first request is configured to request an eBCS, and the first response includes authentication information of the eBCS.
  • the eBCS is an eBCS which needs registration and does not need association.
  • the first request is an ANQP request and the first response is an ANQP response.
  • the ANQP request includes an enhanced broadcast request ANQP-element structure.
  • the enhanced broadcast request ANQP-element structure includes enhanced broadcast services request tuples.
  • the enhanced broadcast services request tuples include request authentication info.
  • the request authentication info is configured to indicate whether to request the authentication information of the eBCS.
  • the enhanced broadcast services request tuples include an enhanced broadcast services request control field, and the enhanced broadcast services request control field includes the request authentication info.
  • the enhanced broadcast services request tuples include a broadcast action field, and a reserved field of the broadcast action field carries the request authentication info.
  • the ANQP response includes a response authentication info present.
  • the response authentication info present is configured to indicate whether the ANQP response includes the authentication information of the eBCS.
  • the ANQP response includes an enhanced broadcast services response control field.
  • the eBCS response control includes the response authentication info present.
  • the eBCS is an eBCS which needs association
  • the first request is an eBCS request
  • the first response is an eBCS response
  • the eBCS request includes an eBCS request element structure.
  • the eBCS request element structure includes an eBCS request information set, and the eBCS request information set includes request authentication info.
  • the request authentication info is configured to indicate whether to request the authentication information of the eBCS.
  • the eBCS request information set includes an eBCS request info control field, and the eBCS request info control field includes the request authentication info.
  • the eBCS response includes a response authentication info present, and the response authentication info present is configured to indicate whether the eBCS response includes the authentication information of the eBCS.
  • the eBCS response includes an eBCS response information set, and the eBCS response information set includes the response authentication info present.
  • the eBCS response information set includes an eBCS response info control field, and the eBCS response info control field includes the response authentication info present.
  • the authentication information of the eBCS includes an authentication algorithm field, and the authentication algorithm field is configured to indicate an authentication algorithm for the eBCS.
  • the authentication algorithm is one of: HLSA, PKFA, HCFA without instant authentication, or HCFA with the instant authentication.
  • the authentication information of eBCS further includes an allowable time difference, a certificate length, and a certificate.
  • the authentication information of the eBCS further includes an allowable time difference, an eBCS info interval, an HCFA key change interval, and an HCFA base key.
  • the authentication information of the eBCS further includes an allowable time difference, a number of instant authenticators, and an instant authenticator list.
  • the instant authenticator list includes an instant authenticator Hash distance and an instant authenticator field.
  • the above communication unit may be a communication interface or a transceiver or an input-output interface of a communication chip or of a system-on-chip.
  • the STA 3000 may correspond to the STA in the method embodiments, and the above and other operations and/or functions of various units of the STA 3000 are configured to respectively implement the corresponding processes performed by the STA in the method embodiments.
  • the above and other operations and/or functions of various units of the STA 3000 are configured to respectively implement the corresponding processes performed by the STA in the method embodiments.
  • elaborations are omitted herein.
  • FIG. 31 illustrates a block diagram of a sending end 3100 according to an embodiment of the present disclosure.
  • the sending end 3100 includes a communication unit 3110.
  • the communication unit 3110 is configured to send an ANQP request to a receiving end.
  • the ANQP request includes a requested time to termination, and the requested time to termination is a time when the sending end requests for terminating an eBCS.
  • the ANQP request includes an enhanced broadcast request ANQP-element structure.
  • the enhanced broadcast request ANQP-element structure includes enhanced broadcast services request tuples.
  • the enhanced broadcast services request tuples include the requested time to termination.
  • the ANQP request includes a broadcast action field, and a reserved field of the broadcast action field carries a requested time to termination present.
  • the requested time to termination present is configured to indicate whether the ANQP request includes the requested time to termination.
  • the enhanced broadcast services request tuples include an enhanced broadcast services request control field, and the enhanced broadcast services request control field includes a requested time to termination present.
  • the requested time to termination present is configured to indicate whether the ANQP request includes the requested time to termination.
  • the eBCS is an eBCS which needs registration and does not need association
  • the ANQP request is configured to request an extension of the eBCS.
  • the above communication unit may be a communication interface or a transceiver or an input-output interface of a communication chip or of a system-on-chip.
  • the sending end 3100 may correspond to the sending end in the method embodiments, and the above and other operations and/or functions of various units in the sending end 3100 are configured to respectively implement the corresponding processes performed by the sending end in the method embodiments.
  • the sending end 3100 may correspond to the sending end in the method embodiments, and the above and other operations and/or functions of various units in the sending end 3100 are configured to respectively implement the corresponding processes performed by the sending end in the method embodiments.
  • elaborations are omitted herein.
  • FIG. 32 illustrates a block diagram of AP 3200 according to an embodiment of the present disclosure.
  • the AP 3200 includes a communication unit 3210.
  • the communication unit 3210 is configured to receive a first request and send a first response to a STA.
  • the first request is configured to request an eBCS, and the first response includes authentication information of the eBCS.
  • the eBCS is an eBCS which needs registration and does not need association.
  • the first request is an ANQP request and the first response is an ANQP response.
  • the ANQP request includes an enhanced broadcast request ANQP-element structure.
  • the enhanced broadcast request ANQP-element structure includes enhanced broadcast services request tuples, and the enhanced broadcast services request tuples include request authentication info.
  • the request authentication info is configured to indicate whether to request the authentication information of the eBCS.
  • the enhanced broadcast services request tuples include an enhanced broadcast services request control field, and the enhanced broadcast services request control field includes the request authentication info.
  • the enhanced broadcast services request tuples include a broadcast action field, and a reserved field of the broadcast action field carries the request authentication info.
  • the ANQP response includes a response authentication info present.
  • the response authentication info present is configured to indicate whether the ANQP response includes the authentication information the eBCS.
  • the ANQP response includes an enhanced broadcast services response control field, and the enhanced broadcast services response control field includes the response authentication info present.
  • the eBCS is an eBCS which needs association, and correspondingly, the first request is the eBCS request, and the first response is the eBCS response.
  • the eBCS request includes an eBCS request element structure, and the eBCS request element structure includes an eBCS request information set.
  • the eBCS request information set includes request authentication info.
  • the request authentication info is configured to indicate whether to request the authentication information of the eBCS.
  • the eBCS request information set includes an eBCS request info control field, and the eBCS request info control field includes the request authentication info.
  • the eBCS response includes a response authentication info present.
  • the response authentication info present is configured to indicate whether the eBCS response includes the authentication information of the eBCS.
  • the eBCS response includes an eBCS response information set, and the eBCS response information set includes the response authentication info present.
  • the eBCS response information set includes an eBCS response info control field, and the eBCS response info control field includes the response authentication information present.
  • the authentication information of the eBCS includes an authentication algorithm field.
  • the authentication algorithm field is configured to indicate an authentication algorithm for the eBCS.
  • the authentication algorithm is one of: HLSA, PKFA, HCFA without instant authentication, or HCFA with the instant authentication.
  • the authentication information of the eBCS further includes an allowable time difference, a certificate length, and a certificate.
  • the authentication information of the eBCS further includes an allowable time difference, an eBCS info interval, an HCFA key change interval, and an HCFA base key.
  • the authentication information of the eBCS further includes an allowable time difference, a number of instant authenticators, and an instant authenticator list.
  • the instant authenticator list includes an instant authenticator Hash distance and an instant authenticator field.
  • the communication unit may be a communication interface or a transceiver or an input-output interface of a communication chip or of a system-on-chip.
  • the AP 3200 may correspond to the AP in the method embodiments, and the above and other operations and/or functions of various units in the AP 3200 are configured to respectively implement the corresponding processes performed by the AP in the method embodiments.
  • elaborations are omitted herein.
  • FIG. 33 illustrates a block diagram of a receiving end 3300 according to an embodiment of the present disclosure.
  • the receiving end 3300 includes a communication unit 3310.
  • the communication unit 3310 is configured to receive an ANQP request from a sending end.
  • the ANQP request includes a requested time to termination, and the requested time to termination is a time when the sending end requests for terminating an eBCS.
  • the ANQP request includes an enhanced broadcast request ANQP-element structure.
  • the enhanced broadcast request ANQP-element structure includes enhanced broadcast services request tuples.
  • the enhanced broadcast services request tuples include the requested time to termination.
  • the ANQP request includes a broadcast action field, and a reserved field of the broadcast action field carries a requested time to termination present.
  • the requested time to termination present is configured to indicate whether the ANQP request includes the requested time to termination.
  • the enhanced broadcast services request tuples include an enhanced broadcast services request control field, and the enhanced broadcast services request control field includes a requested time to termination present.
  • the requested time to termination present is configured to indicate whether the ANQP request includes the requested time to termination.
  • the eBCS is an eBCS which needs registration and does not need association
  • the ANQP request is configured to request an extension of the eBCS.
  • the above communication unit may be a communication interface or a transceiver or an input-output interface of a communication chip or of a system-on-chip.
  • the receiving end 3300 may correspond to the receiving end in the method embodiments, and the above and other operations and/or functions of various units in the receiving end 3300 are configured to respectively implement the corresponding processes performed by the receiving end in the method embodiments.
  • the above and other operations and/or functions of various units in the receiving end 3300 are configured to respectively implement the corresponding processes performed by the receiving end in the method embodiments.
  • elaborations are omitted herein.
  • FIG. 34 is a diagram of a structure of a communication device 3400 provided by an embodiment of the present disclosure.
  • the communication device 3400 illustrated in FIG. 34 includes a processor 3410.
  • the processor 3410 is configured to invoke and run a computer program from a memory to implement the method in embodiments of the present disclosure.
  • the communication device 3400 further includes a memory 3420.
  • the processor 3410 is configured to invoke and run a computer program from the memory 3420 to implement the method in embodiments of the present disclosure.
  • the memory 3420 may be a separate device independent of the processor 3410 or may be integrated in the processor 3410.
  • the communication device 3400 may further include a transceiver 3430.
  • the processor 3410 may control the transceiver 3430 to communicate with other devices, and in particular may transmit information or data to or receive information or data from other devices.
  • the transceiver 3430 may include at least one transmitter and at least one receiver.
  • the transceiver 3430 may further include antennas, and a number of antennas may be one or more.
  • the communication device 3400 may specifically be the STA in the embodiments of the present disclosure, and the communication device 3400 may implement the corresponding processes implemented by the STA in various methods of the embodiments of the present disclosure, which would not be repeated here for the sake of brevity.
  • the communication device 3400 may specifically be the AP in the embodiments of the present disclosure, and the communication device 3400 may implement corresponding processes implemented by the AP in various methods of the embodiments of the present disclosure, which would not be repeated here for the sake of brevity.
  • the communication device 3400 may specifically be the sending end in the embodiments of the present disclosure, and the communication device 3400 may implement corresponding processes implemented by the sending end in various methods of the embodiments of the present disclosure, which would not be repeated here for the sake of brevity.
  • the communication device 3400 may specifically be a receiving end in the embodiments of the present disclosure, and the communication device 3400 may implement corresponding processes implemented by the receiving end in various methods of the embodiments of the present disclosure, which would not be repeated here for the sake of brevity.
  • FIG. 35 is a diagram of a structure of a device according to an embodiment of the present disclosure.
  • the device 3500 illustrated in FIG. 35 includes a processor 3510, and the processor 3510 is configured to invoke and run a computer program from a memory to implement the method in embodiments of the present disclosure.
  • the device 3500 may further include a memory 3520.
  • the processor 3510 may invoke and run a computer program from the memory 3520 to implement the method in the embodiments of the present disclosure.
  • the memory 3520 may be a separate device independent of the processor 3510 or may be integrated in the processor 3510.
  • the device 3500 may further include an input interface 3530.
  • the processor 3510 may control the input interface 3530 to communicate with other devices or chips, and in particular to obtain information or data from other devices or chips.
  • the device 3500 may further include an output interface 3540.
  • the processor 3510 may control the output interface 3540 to communicate with other devices or chips, and in particular to output information or data to other devices or chips.
  • the device can be applied to the network device in the embodiments of the present disclosure, and the device can realize the corresponding processes realized by the network device in various methods of the embodiments of the present disclosure, which would not be repeated here for the sake of brevity.
  • the device can be applied to the terminal device in the embodiments of the present disclosure, and the device can realize the corresponding processes realized by the terminal device in various methods of the embodiments of the present disclosure, which would not be repeated here for the sake of brevity.
  • the device mentioned in the embodiments of the present disclosure may also be a chip.
  • it can be a system level ship, a system chip, a chip system or a system-on-chip.
  • the processor in the embodiments of the present disclosure may be an integrated circuit chip having signal processing capability.
  • the various operations of the above method embodiments may be accomplished by integrated logic circuit of hardware or instructions in the form of software in a processor.
  • the processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic devices, a discrete gate or transistor logic device, or a discrete hardware component.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the methods, operations and logic block diagrams disclosed in embodiments of the present disclosure may be implemented or performed.
  • the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the operations of the method disclosed in combination with the embodiments of the present disclosure can be directly embodied as execution of a hardware decoding processor or combined execution of hardware and software modules in the decoding processor.
  • the software module may be located in a Random-Access Memory (RAM), a flash memory, a Read-Only Memory (ROM), a Programmable ROM (PROM) or an Electrically Erasable EPROM (EEPROM), a register and other storage medium mature in the art.
  • RAM Random-Access Memory
  • ROM Read-Only Memory
  • PROM Programmable ROM
  • EEPROM Electrically Erasable EPROM
  • the memory in embodiments of the present disclosure may be volatile memory or non-volatile memory or may include both volatile and non-volatile memory.
  • the non-volatile memory may be an ROM, a PROM, an Erasable PROM (EPROM), an EEPROM, or a flash memory.
  • the volatile memory may be an RAM which serves as an external cache.
  • many forms of RAM are available, such as a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synchlink DRAM (SLDRAM), and a Direct Rambus RAM (DR RAM).
  • SRAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced SDRAM
  • SLDRAM Synchlink DRAM
  • DR RAM Direct Rambus RAM
  • the memory described above is exemplary but not limiting.
  • the memory in embodiments of the present disclosure may also be a SRAM, a DRAM, a SDRAM, a DDR SDRAM, an ESDRAM, an SLDRAM, a DR RAM, etc. That is, the memory in embodiments of the present disclosure is intended to include but not be limited to these and any other suitable types of memory.
  • Embodiments of the present disclosure also provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the STA, the AP, the sending end or the receiving end in the embodiments of the present disclosure, and the computer program enables the computer to execute the corresponding processes implemented by the STA, the AP, the sending end or the receiving end in various methods of the embodiments of the present disclosure, which would not be repeated here for the sake of brevity.
  • Embodiments of the present disclosure also provide a computer program product including computer program instructions.
  • the computer program product may be applied to the STA, the AP, the sending end or the receiving end in the embodiments of the present disclosure, and the computer program instructions enable the computer to execute the corresponding processes implemented by the STA, the AP, the sending end or the receiving end in various methods of the embodiments of the present disclosure, which would not be repeated here for the sake of brevity.
  • Embodiments of the present disclosure also provide a computer program.
  • the computer program may be applied to the STA, the AP, the sending end or the receiving end in the embodiments of the present disclosure.
  • the computer program When the computer program is run on the computer, the computer executes the corresponding processes implemented by the STA, the AP, the sending end or the receiving end in various methods of the embodiments of the present disclosure, which would not be repeated here for the sake of brevity.
  • a unified eBCS request element and a unified eBCS response element are further provided to request and obtain an eBCS.
  • the unified eBCS request element is valid for both associated eBCS and non-associated eBCS
  • the unified eBCS response element is also valid for both the associated eBCS and the non-associated eBCS.
  • eBCS request element is also described as an eBCS request element structure and the eBCS response element is also described as an eBCS response element structure, which would not be limited herein.
  • FIG. 36 is an interaction flow chart of another wireless communication method provided by an embodiment of the present disclosure. As illustrated in FIG. 36 , the method includes the following operations.
  • an STA sends a request frame to an AP, and the request frame carries an eBCS request element.
  • the AP sends a response frame to the STA, and the response frame carries an eBCS response element.
  • the eBCS request element is a unified request element for an eBCS that needs registration and does not need association and an eBCS that needs association
  • the eBCS response element is a unified response element for the eBCS that needs registration and does not need association and the eBCS that needs association.
  • the eBCS request element is the unified request element for the eBCS that needs registration and does not need association and the eBCS that needs association, which may refer to that the eBCS request element is applicable to both the eBCS that needs registration and does not need association and the eBCS that needs association.
  • the eBCS response element is the unified response element for the eBCS that needs registration and does not need association and the eBCS that needs association, which may refer to that the eBCS response element is applicable to both the eBCS that needs registration and does not need association, and the eBCS that needs association.
  • the eBCS request element is referred to below as a unified eBCS request element and the eBCS response element is referred to as a unified eBCS response element.
  • the unified eBCS request element may also be directly referred to as the eBCS request element, and the unified eBCS response element may also be directly referred to as the eBCS response element.
  • the unified eBCS request element is carried in a GAS initial request frame for the eBCS that needs registration and does not need association, that is, the request frame carrying the eBCS request element is the GAS initial request frame.
  • Table 2 illustrates an example that the unified eBCS request element is carried in the GAS initial request frame, but is not limited to this: Table 2 Action Field Format of the GAS Initial Request Frame Order Information 0 Category 1 Public Action 2 Dialog Token 3 Advertisement Protocol Element 4 Query Request Length 5 Query Request 6 Multi-band (optional) 7 Common Advertisement Group (CAG) Number (optional) 8 GAS Extension (optional) 9 Unified eBCS request element (optional)
  • the eBCS response element is carried in a GAS initial response frame for the eBCS that needs registration and does not need association, that is, the response frame carrying the eBCS response element is the GAS initial response frame.
  • Table 3 illustrates an example that the unified eBCS response element is carried in the GAS initial response frame, but is not limited to this: Table 3 Action Field Format of the GAS Initial Response Frame Order Information 0 Category 1 Public Action 2 Dialog Token 3 Status Code 4 GAS Comeback Delay 5 Advertisement Protocol Element 6 Query Response Length 7 Query Response (optional) 8 Multi-band (optional) 9 GAS Extension (optional) 10 Unified eBCS response element (optional)
  • the unified eBCS request element is carried in the eBCS request frame for the eBCS that needs association, that is, the request frame carrying the eBCS request element is an eBCS request frame.
  • eBCS request frame is also described as an eBCS request, which is not limited herein.
  • the unified eBCS response element is carried in the eBCS response frame for the eBCS that needs association.
  • eBCS response frame is also described as an eBCS response, which is not limited herein.
  • FIG. 37 is a diagram of a unified eBCS request element.
  • the unified eBCS request element may include an enhanced broadcast services request tuples, and the enhanced broadcast services request tuples include an enhanced broadcast services request control field, a broadcast action and a content ID.
  • the enhanced broadcast services request control field includes a requested time to termination present.
  • the requested time to termination present is configured to indicate whether the eBCS request element includes the requested time to termination.
  • the requested time to termination is a time when the STA requests for terminating the eBCS.
  • a value of requested time to termination present is 1, it is indicated that the eBCS request element includes the requested time to termination.
  • the value of requested time to termination present is 0, it is indicated that the eBCS request element does not include the requested time to termination.
  • the requested time to termination present is configured to indicate that the eBCS request element includes the requested time to termination
  • the requested time to termination may be carried in the enhanced broadcast services request tuples as illustrated in FIG. 37 , which is not limited thereto.
  • the enhanced broadcast services request control field includes a broadcast MAC address present.
  • the broadcast MAC address present is configured to indicate whether the eBCS request element includes the broadcast MAC address.
  • the broadcast MAC address is the MAC address of the AP.
  • the eBCS request element when a value of the broadcast MAC address present is 1, it is indicated that the eBCS request element includes the broadcast MAC address. When the value of the broadcast MAC address present is 0, it is indicated the eBCS request element does not include the broadcast MAC address.
  • the broadcast MAC address present is configured to indicate that the eBCS request element includes the broadcast MAC address
  • the broadcast MAC address is carried in the enhanced broadcast services request tuples as illustrated in FIG. 37 , which is not limited thereto.
  • the enhanced broadcast services request control field includes request authentication information.
  • the request authentication information is configured to indicate whether to request for acquiring authentication information of the eBCS.
  • a value of the request authentication information is 1, it is indicated that the authentication information of eBCS is requested. That is, rapid acquisition of the eBCS by the STA is supported.
  • the value of the request authentication information is 0, it is indicated that the authentication information of eBCS is not requested. That is, rapid acquisition of the eBCS by the STA is not supported.
  • the enhanced broadcast services request control field includes a request target AP information present.
  • the request target AP information present is configured for a cross-AP request process of the STA.
  • eBCS request element when a value of request target AP information present is 1, it is indicated that the eBCS request element includes a target AP BSSID. When the value of the request target AP information present is 0, it is indicated that the eBCS request element does not include the target AP BSSID.
  • the target AP BSSID may be carried in the enhanced broadcast services request tuples as illustrated in FIG. 37 , which is not limited thereto.
  • FIG. 38 is a diagram of a unified eBCS response element.
  • the unified eBCS response element includes enhanced broadcast services response tuples, and the enhanced broadcast services response tuples include an enhanced broadcast services response control field, a content ID, and a broadcast service transmitting.
  • the enhanced broadcast services response control field includes a response authentication information present.
  • the response authentication information present is configured to indicate whether the eBCS response element includes authentication information of the eBCS.
  • the eBCS response element includes the authentication information of the eBCS.
  • the value of the response authentication information present is 0, it is indicated that the eBCS response element does not include the authentication information of the eBCS.
  • the response authentication information present is configured to indicate that the eBCS response element includes the authentication information of the eBCS
  • the authentication information of the eBCS may be carried in the enhanced broadcast services response control field as illustrated in FIG. 38 , which is not limited thereto.
  • the enhanced broadcast services response control field includes an eBCS request state, and the eBCS request state is configured to indicate whether the eBCS request is successful.
  • eBCS request state when a value of the eBCS request state is 1, it is indicated that the eBCS request is successful. When the value of the eBCS request state is 0, it is indicated that the eBCS request is not successful.
  • the enhanced broadcast services response control field includes a time to termination present.
  • the time to termination present is configured to indicate whether the eBCS response element includes a time to termination.
  • the eBCS response element includes the time to termination.
  • the value of the time to termination present is 1
  • the time to termination present is configured to indicate that the eBCS response element includes the time to termination
  • the time to termination may be carried in the enhanced broadcast services response control field as illustrated in FIG. 38 , which is not limited thereto.
  • the enhanced broadcast services response control field includes an eBCS SP duration present.
  • the eBCS SP duration present is configured to indicate whether the eBCS response element includes the eBCS SP duration.
  • eBCS SP duration present when a value of the eBCS SP duration present is 1, it is indicated that the eBCS response element includes the eBCS SP duration. When the value of the eBCS SP duration present is 0, it is indicated that the eBCS response element does not include the eBCS SP duration.
  • the eBCS SP duration present is configured to indicate that the eBCS response element includes the eBCS SP duration
  • the eBCS SP duration may be carried in the enhanced broadcast services response control field as illustrated in FIG. 38 , which is not limited thereto.
  • the enhanced broadcast services response control field includes an eBCS SP interval present.
  • the eBCS SP interval present is configured to indicate whether the eBCS response element includes the eBCS SP interval.
  • eBCS SP interval present when a value of the eBCS SP interval present is 1, it is indicated that the eBCS response element includes the eBCS SP interval. When the value of the eBCS SP interval present is 0, it is indicated that the eBCS response element does not include the eBCS SP interval.
  • the eBCS SP interval present is configured to indicate that the eBCS response element includes the eBCS SP interval
  • the eBCS SP interval may be carried in the enhanced broadcast services response control field as illustrated in FIG. 38 , which is not limited thereto.
  • the enhanced broadcast services response control field includes a response target AP information present.
  • the response target AP information present is configured to indicate whether the eBCS response element includes the response target AP information.
  • the eBCS response element when a value of the response target AP information present is 1, it is indicated that the eBCS response element includes the response target AP information. When the value of the response target AP information present is 0, it is indicated that the eBCS response element does not include the response target AP information.
  • the response target AP info may be carried in the enhanced broadcast services response control field as illustrated in FIG. 38 , which is not limited thereto.
  • the response target AP info includes the eBCS SP duration, the eBCS SP interval, a next schedule, and authentication information.
  • the eBCS SP duration is configured to indicate a duration of the eBCS.
  • the eBCS SP interval is configured to indicate an interval of the eBCS, and the next schedule is configured to indicate a next time for allocating the eBCS.
  • the authentication information of the eBCS includes an authentication algorithm field, and the authentication algorithm field is configured to indicate an authentication algorithm for the eBCS.
  • the authentication algorithm is, but is not limited to, one of HLSA, PKFA, HCFA without instant authentication, or HCFA with the instant authentication.
  • the authentication algorithm of eBCS is illustrated in Table 1.
  • a value corresponding to the authentication algorithm is 0, it is indicated that the requested eBCS authentication method is the HLSA, and there is no the related authentication information field. If the value corresponding to the authentication algorithm is 1, it is indicated that the requested eBCS authentication method is the PKFA, and the authentication information further includes an allowable time difference, a certificate length and a certificate. If the value corresponding to the authentication algorithm is 2, it is indicated that the requested eBCS authentication method is the HCFA without the instant authentication, and the authentication information further includes the allowable time difference, an eBCS info interval, an HCFA key change interval and an HCFA base key.
  • the authentication information further includes the allowable time difference, a number of instant authenticators and an instant authenticator list.
  • the instant authenticator list includes an instant authenticator Hash distance and an instant authenticator field.
  • the unified eBCS request element and the unified eBCS response element are further provided to request and obtain the eBCS.
  • the unified eBCS request element is valid for both associated eBCS and non-associated eBCS, and the unified eBCS response element is also valid for both the associated eBCS and the non-associated eBCS.
  • the unified eBCS request method is provided.
  • a request method only for the eBCS that needs association hereinafter referred to as a first eBCS request method
  • a request method only for the eBCS that needs registration and does not need association hereinafter referred to as a second eBCS request method. Therefore, the STA and AP need to determine which eBCS request method to adopt before performing the request of the eBCS.
  • the STA and the AP may use the same method to determine which eBCS request method to adopt.
  • the STA determines which eBCS request method to adopt and indicates to the AP which eBCS request method to adopt.
  • the AP determines which eBCS request method to adopt and indicates to the STA which eBCS request method to adopt.
  • each eBCS request method corresponds to a unique index.
  • the request method for the eBCS that needs registration and do not need association and for the eBCS that need association can be referred to as a unified eBCS request method or a target eBCS request method.
  • the unified eBCS request method replaces the first eBCS request method or the second eBCS request method. That is, the first eBCS request method in the related art is replaced by the unified eBCS request method. Alternatively, the second eBCS request method in the related art is replaced by the unified eBCS request method.
  • indexes corresponding to the first eBCS request method would correspond to those of the unified eBCS request method in the present disclosure, as illustrated in Table 4.
  • indexes of the unified eBCS request method are different from those of the first eBCS request method and the second eBCS request method.
  • Table 5 eBCS Request Mode Index for the eBCS Request Method Meaning Remarks 0 No negotiation 1 Request using EBCS Requestframes EBCS request by STAs that are associated with the broadcaster 2 Request using EBCS Request ANQP-elements EBCS request by STAs that are not associated with the broadcaster 3 Request as defined in EBCS info frame Out of band request.
  • the mechanism and address are indicated in the EBCS frame 4 Request using Unified EBCS Request frames eBCS request by STAs that are associated or not associated with the broadcaster 5-255 Reserved
  • the unified eBCS request method is provided.
  • the request method only for the eBCS that needs association and the request method only for the eBCS that needs registration and does not needs association.
  • a certain eBCS request method to be adopted can be flexibly determined or indicated through the technical solution provided by the present disclosure.
  • FIG. 39 illustrates a block diagram of a STA 3900 according to an embodiment of the present disclosure.
  • the STA 3900 includes a communication unit 3910.
  • the communication unit 3910 is configured to send a request frame carrying an eBCS request element to an AP and receive a response frame carrying an eBCS response element.
  • the eBCS request element is a unified request element for an eBCS that needs registration and does not need association and an eBCS that needs association
  • the eBCS response element is a unified response element for the eBCS that needs registration and does not need association and the eBCS that needs association.
  • the above request frame is a GAS initial request frame.
  • the above response frame is a GAS initial response frame.
  • the request frame is an eBCS request frame.
  • the response frame is an eBCS response frame.
  • the eBCS request element includes a requested time to termination present.
  • the requested time to termination present is configured to indicate whether the eBCS request element includes a requested time to termination.
  • the requested time to termination is a time when the STA requests for terminating an eBCS.
  • the eBCS request element includes an enhanced broadcast services request control field, and the enhanced broadcast services request control field carries the requested time to termination present.
  • the eBCS request element includes the requested time to termination.
  • the eBCS request element includes enhanced broadcast services request tuples, and the enhanced broadcast services request tuples include the requested time to termination.
  • the eBCS request element includes request authentication info.
  • the request authentication info is configured to indicate whether to request the authentication information of the eBCS.
  • the eBCS request element includes an enhanced broadcast services request control field, and the enhanced broadcast services request control field carries the request authentication info.
  • the eBCS request element includes the enhanced broadcast services request tuples, and the enhanced broadcast services request tuples include the enhanced broadcast services request control field.
  • the eBCS response element includes a response authentication info present.
  • the response authentication info present is configured to indicate whether the eBCS response element includes the authentication information of the eBCS.
  • the eBCS response element includes an enhanced broadcast services response control field, and the enhanced broadcast services response control field includes the response authentication info present.
  • the eBCS response element includes enhanced broadcast services response tuples, and the enhanced broadcast services response tuples include the enhanced broadcast services response control field.
  • the eBCS response element includes the authentication information of the eBCS.
  • the eBCS response element includes the enhanced broadcast services response tuples, and the enhanced broadcast services response tuples includes the authentication information of the eBCS.
  • the authentication information of the eBCS includes an authentication algorithm field, and the authentication algorithm field is configured to indicate an authentication algorithm for the eBCS.
  • the authentication algorithm is one of: HLSA, PKFA, HCFA without instant authentication, or HCFA with the instant authentication.
  • the authentication information of the eBCS further includes an allowable time difference, a certificate length, and a certificate.
  • the authentication information of the eBCS further includes the allowable time difference, an eBCS info interval, an HCFA key change interval, and an HCFA base key.
  • the authentication information of the eBCS further includes the allowable time difference, a number of instant authenticators, and an instant authenticator list.
  • the instant authenticator list includes an instant authenticator Hash distance and an instant authenticator field.
  • the STA 3900 includes a processing unit 3920, and the processing unit 3920 is configured to determine to request the eBCS by adopting a target eBCS request method.
  • the target eBCS request method is a unified eBCS request method for the eBCS that needs registration and does not need association and the eBCS that needs association.
  • the target eBCS request method corresponds to a unique index.
  • the target eBCS request method replaces the first eBCS request method or the second eBCS request method.
  • the first eBCS request method is only for the eBCS that needs association
  • the second eBCS request method is only for the eBCS that needs registration and does not need association.
  • the index of the target eBCS request method is different from indexes of the first eBCS request method and the second eBCS request method.
  • the first eBCS request method is only for the eBCS that needs association
  • the second eBCS request method is only for the eBCS that needs registration and does not need association.
  • the communication unit may be a communication interface or a transceiver or an input-output interface of a communication chip or of a system-on-chip.
  • the processing unit may be one or more processors.
  • the STA 3900 may correspond to the STA in the method embodiments, and the above and other operations and/or functions of various units in the STA 3900 are configured to respectively implement the corresponding processes performed by the STA in the method embodiments.
  • the above and other operations and/or functions of various units in the STA 3900 are configured to respectively implement the corresponding processes performed by the STA in the method embodiments.
  • elaborations are omitted herein.
  • FIG. 40 illustrates a block diagram of an AP 4000 according to an embodiment of the present disclosure.
  • the AP 4000 includes a communication unit 4010.
  • the communication unit 4010 is configured to receive a request frame carrying an eBCS request element sent by an STA, and send a response frame carrying an eBCS response element to the STA.
  • the eBCS request element is a unified request element for an eBCS that needs registration and does not need association and an eBCS that needs association
  • the eBCS response element is a unified response element for the eBCS that needs registration and does not need association and the eBCS that needs association.
  • the above request frame is a GAS initial request frame.
  • the above response frame is a GAS initial response frame.
  • the request frame is an eBCS request frame.
  • the response frame is an eBCS response frame.
  • the eBCS request element includes a requested time to termination present.
  • the requested time to termination present is configured to indicate whether the eBCS request element includes a requested time to termination.
  • the requested time to termination is a time when the STA requests for terminating an eBCS.
  • the eBCS request element includes an enhanced broadcast services request control field, and the enhanced broadcast services request control field carries the requested time to termination present.
  • the eBCS request element includes the requested time to termination.
  • the eBCS request element includes enhanced broadcast services request tuples, and the enhanced broadcast services request tuples include the requested time to termination.
  • the eBCS request element includes request authentication info.
  • the request authentication info is configured to indicate whether to request the authentication information of the eBCS.
  • the eBCS request element includes an enhanced broadcast services request control field, and the enhanced broadcast services request control field carries the request authentication info.
  • the eBCS request element includes enhanced broadcast services request tuples, and the enhanced broadcast services request tuples include the enhanced broadcast services request control field.
  • the eBCS response element includes a response authentication info present.
  • the response authentication info present is configured to indicate whether the eBCS response element includes the authentication information of the eBCS.
  • the eBCS response element includes an enhanced broadcast services response control field, and the enhanced broadcast services response control field includes the response authentication info present.
  • the eBCS response element includes enhanced broadcast services response tuples, and the enhanced broadcast services response tuples include the enhanced broadcast services response control field.
  • the eBCS response element includes the authentication information of the eBCS.
  • the eBCS response element includes the enhanced broadcast services response tuples, and the enhanced broadcast services response tuples includes the authentication information of the eBCS.
  • the authentication information of the eBCS includes an authentication algorithm field, and the authentication algorithm field is configured to indicate an authentication algorithm for the eBCS.
  • the authentication algorithm is one of: HLSA, PKFA, HCFA without instant authentication, or HCFA with the instant authentication.
  • the authentication information of the eBCS further includes an allowable time difference, a certificate length, and a certificate.
  • the authentication information of the eBCS further includes the allowable time difference, an eBCS info interval, an HCFA key change interval, and an HCFA base key.
  • the authentication information of the eBCS further includes the allowable time difference, a number of instant authenticators, and an instant authenticator list.
  • the instant authenticator list includes an instant authenticator Hash distance and an instant authenticator field.
  • the AP 4000 includes a processing unit 4020, and the processing unit 4020 is configured to determine to request the eBCS by adopting a target eBCS request method.
  • the target eBCS request method is a unified eBCS request method for the eBCS that needs registration and does not need association and the eBCS that needs association.
  • the target eBCS request method corresponds to a unique index.
  • the target eBCS request method replaces the first eBCS request method or the second eBCS request method.
  • the first eBCS request method is only for the eBCS that needs association
  • the second eBCS request method is only for the eBCS that needs registration and does not need association.
  • the index of the target eBCS request method is different from indexes of the first eBCS request method and the second eBCS request method.
  • the first eBCS request method is only for the eBCS that needs association
  • the second eBCS request method is only for the eBCS that needs registration and does not need association.
  • the communication unit may be a communication interface or a transceiver or an input-output interface of a communication chip or of a system-on-chip.
  • the processing unit may be one or more processors.
  • the AP 4000 may correspond to the AP in the method embodiments, and the above and other operations and/or functions of various units in the AP 4000 are configured to respectively implement the corresponding processes performed by the AP in the method embodiments.
  • elaborations are omitted herein.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the above-described embodiments of the devices are only schematic, for example, the division of the unit is only a logical function division, and in practice, there may be another division method, for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not performed.
  • the coupling or direct coupling or communication connection between each other illustrated or discussed may be indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or other form.
  • the units illustrated as separate components may or may not be physically separated, and the components displayed as unit may or may not be physical units, that is, the units and the components may be located in one place, or may be distributed over multiple network units. Part or all of the units can be selected according to the actual needs to achieve the purpose of the embodiments.
  • various functional units in the embodiments of the present disclosure may be integrated in one processing unit, or various units may exist physically alone, or two or more units may be integrated in one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of software functional units and sold or used as stand-alone products.
  • the technical solutions of the present disclosure can be embodied in the form of a software product in essence or the part that contributes to the related art or the part of the technical solutions.
  • the computer software product is stored in a storage medium and includes instructions that enables a computer device (which may be a personal computer, server, network device, etc.) to perform all or part of the operations of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage medium includes a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk or an optical disk and other medium capable of storing program codes.

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EP21935671.4A 2021-04-09 2021-05-17 Procédé de communication sans fil et dispositif Pending EP4274269A4 (fr)

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CN202110385389.6A CN115209352A (zh) 2021-04-09 2021-04-09 无线通信方法及设备
PCT/CN2021/088708 WO2022213425A1 (fr) 2021-04-09 2021-04-21 Procédé et dispositif de communication sans fil
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